1: The day your parents find your stash of marijuana.
2: The day your girlfriend finds you at a strip club
3: The day in several fucked up religions that state the end of everything.
4: The day SkyNet takes over

Example 1:

Mom: What the FUCK is that green shit u got under your bed?!?
Kid: Chewed up froot loops?

Example 2:

Bitch: Marty what the FUCK are you doing here at this strip club??
Marty: what the fuck are YOU doing here, bitch?!?

Sarah Connor: 3 billion human lives ended on August 29th, 1997. The survivors of the nuclear fire called the war Judgment Day. They lived only to face a new nightmare: the war against the machines. The computer which controlled the machines, Skynet, sent two Terminators back through time. Their mission: to destroy the leader of the human resistance, John Connor, my son. The first Terminator was programmed to strike at me in the year 1984, before John was born. It failed. The second was set to strike at John himself when he was still a child. As before, the resistance was able to send a lone warrior, a protector for John. It was just a question of which one of them would reach him first.